RCE in Dedeveloper23 Codebase-Mcp
CVE-2026-5023
A vulnerability has been found in DeDeveloper23 codebase-mcp up to 3ec749d237dd8eabbeef48657cf917275792fde6. This vulnerability affects the function getCodebase/getRemoteCodebase/saveCodebase of the file src/tools/codebase.ts of the component RepoMix Command Handler. Such manipulation leads to os command injection. The attack needs to be performed locally. The exploit has been disclosed to the public and may be used. This product implements a rolling release for ongoing delivery, which means version information for affected or updated releases is unavailable. The project was informed of the problem early through an issue report but has not responded yet.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.006 (47.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Dedeveloper23 Codebase-mcp — versions 3ec749d237dd8eabbeef48657cf917275792fde6
Weakness classification (CWE)
References
- cna@vuldb.com (technical-description, vdb-entry)
- cna@vuldb.com (signature, permissions-required)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (issue-tracking, exploit)
- cna@vuldb.com (product)
Frequently asked questions
- What is CVE-2026-5023?
- CVE-2026-5023 is a medium-severity vulnerability in Dedeveloper23 Codebase-Mcp, classified under Command Injection. CVSS score: 5.3/10. Published 2026-03-29.
- How severe is CVE-2026-5023?
- Medium severity. CVSS v3 base score is 5.3 out of 10.